Compare 21406 vs 21415
| Property | 21406 | 21415 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 4 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 21 × 71 × 111 × 1391 | 51 × 42831 |
| Prime factorization | 2 × 7 × 11 × 139 | 5 × 4283 |
| Divisors count | 16 | 4 |
| Divisors | 1, 2, 7, 11, 14, 22, 77, 139, 154, 278, 973, 1529, 1946, 3058, 10703, 21406 | 1, 5, 4283, 21415 |
| Number of properties | 0 | 1 |
| Semiprimes | 5423rd | |
| Roman numberals | ||
| Base 2 | 1010011100111102 | 1010011101001112 |
| Base 3 | 10021002113 | 10021010113 |
| Base 4 | 110321324 | 110322134 |
| Base 5 | 11411115 | 11411305 |
| Base 6 | 2430346 | 2430516 |
| Base 7 | 1162607 | 1163027 |
| Base 8 | 516368 | 516478 |
| Base 9 | 323249 | 323349 |
| Base 10 | 2140610 | 2141510 |
| Base 11 | 150a011 | 150a911 |
| Base 12 | 1047a12 | 1048712 |
| Base 13 | 998813 | 999413 |
| Base 14 | 7b3014 | 7b3914 |
| Base 15 | 652115 | 652a15 |
| Base 16 | 539e16 | 53a716 |